$TDY
Teledyne Technologies Incorporated
XNYS•Technology•Search, Detection, Navigation, Guidance, Aeronautical Sys
Why is TDY down today? It is at $633.95 (-2.26%), and our scanner flagged it 26 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment TDY spikes, and full due diligence on TDY — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $633.95
- Change today
- -2.26%
- Previous close
- $648.63
- 52-week range
- $483.02 – $697.67
- Market cap
- $30.83B
- Institutional own.
- 99.9%
- Total held
- 99.9%
- Tradeable float
- 46K 0% of shares · after 100% institutions
- Short interest
- 1.3M ▼ -8% vs prior · as of 2026-07-31
- Days to cover
- 2.4d
- Avg daily volume
- 340K
- Sector
- Technology
- Industry
- Search, Detection, Navigation, Guidance, Aeronautical Sys
- Exchange
- XNYS
- 5m
- 0.6x
- 15m
- 0.5x
- 1h
- 0.6x
- 1D
- 0.2x
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Why is $TDY down today?
TDY is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on TDY today, peaking at 12.5x its normal volume.
Analyst data via Nasdaq. Not investment advice.
Insiders
0 buys, 2 sells last 3 months (9/15 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Lorne Simon M Director | Sold (automatic/other) | -6K 0.01% of company | sold 10% | 56K | $4.4M at $679.74 | Aug 12, 26 |
Von Schack Wesley W Director | Sold (automatic/other) | -468 | sold 4.1% | 11K | $321K at $686.63 | Aug 12, 26 |
Black Laura A. Director | Acquired (grant/award) | +319 | added 100% | 502 | n/a | Apr 22, 26 |
Kumbier Michelle Director | Acquired (grant/award) | +319 | added 12% | 3K | n/a | Apr 22, 26 |
Lorne Simon M Director | Acquired (grant/award) | +319 | added 0.5% | 62K | n/a | Apr 22, 26 |
Malone Robert A Director | Acquired (grant/award) | +319 | added 5.4% | 6K | n/a | Apr 22, 26 |
Morales Vincent J Director | Acquired (grant/award) | +319 | added 17% | 2K | n/a | Apr 22, 26 |
Sherburne Jane Cecile Director | Acquired (grant/award) | +319 | added 7.2% | 5K | n/a | Apr 22, 26 |
Smith Michael T Director | Acquired (grant/award) | +319 | added 0.7% | 48K | n/a | Apr 22, 26 |
Von Schack Wesley W Director | Acquired (grant/award) | +319 | added 2.9% | 11K | n/a | Apr 22, 26 |
Vanwees Jason Officer | Sold (automatic/other) | -65 | sold 2.3% | 3K | n/a | Apr 22, 26 |
Vanwees Jason Officer | Other | 126 | added 4.8% | 3K | n/a | Apr 22, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Dilution watch
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $TDY. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$TDY Sentiment
BearishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$TDY Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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TDY stock FAQ
Why is $TDY down today?
TDY is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on TDY today, peaking at 12.5x its normal volume.
What is the TDY stock price today?
TDY last traded at $633.95, down 2.26% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live TDY alerts?
The TDY Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged TDY 26 times in the last 30 days.
What exchange is TDY on?
TDY (Teledyne Technologies Incorporated) trades on XNYS, with a market cap of about $30.83B in the SEARCH, DETECTION, NAVIGATION, GUIDANCE, AERONAUTICAL SYS sector.
Is TDY good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge TDY for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.